ASIA ELECTRONICS IND.CO.
ASIA ELECTRONICS FM SERIES DC-DC CONVERTERS

Manufacturer: ASIA ELECTRONICS
Model: FM Series
Features
- Built-in Input Filter
- Input-Output Isolation
- High Efficiency 87~91%
- Wide Input Voltage Range
- High Reliability
- Adjustable Output Volt. ±10%
- Input Low Voltage Protection
- Input Over Voltage Protection
- Output Over Voltage Protection
- Thermal Protection +110℃~+120℃
- Possible Parallel Operation up to 3 converters
- Operating Ambient Temperature −40℃~+85℃
- Conformity to RoHS2 Directive
- Not built-in aluminum and tantalum electrolytic capacitor
Specifications
◆General Characteristics
Input Voltage, Range | DC5, 12, 24, 48V (See Table 1) |
Output Voltage, Current | See Table 1 |
Output Voltage Range | ±5% Adjustable |
Efficiency | See Table 1 |
Line Regulation | ±0.3% max. (at Vin Range) |
Load Regulation | Single: ±0.5% max. (0–100% Load) Dual: ±3% max. (10–100% Load) |
Reflected Input Ripple, Noise | (3% Vin) Vp-p max. |
Output Ripple | 40mVp-p max. 200mVp-p max. (48V Vout only) |
Output Noise | 100mVp-p max. 300mVp-p max. (48V Vout only) |
Short Circuit Protection | Built-in, Auto-restart (See Fig. 2) |
Over Voltage Protection | 115~140% of Output Voltage |
Remote ON/OFF Control | ON: Short or 0~0.8V OFF: Open or 2~10V (Between terminal ② ~ ③) |
Temperature Coefficient | 0.02%/℃ max. |
Operating Ambient Temp. | −40℃~+85℃ (See Fig. 1) −30℃~+85℃ (5V Vin only) |
Max. Case Temperature | +105℃ |
Storage Temperature | −40℃~+115℃ |
Isolation Voltage | AC1500V one minute (Input–Output–Case) |
Isolation Impedance | 100MΩ min. (at DC1000V) (Input–Output–Case) |
Weight | Main Body: 100g max. Heat Sink: 40g max. |
Humidity | 20~95% RH |
Shock | 490m/s² (11msec 3 directions) |
Vibration | 10~55Hz 98m/s² (30 minutes 3 directions) |
Surface Structure | 6 Sided Aluminum Case |
MTBF | Single: 1,000,000H Dual: 700,000H (Ta: 25℃, 80% Load, Nominal Vin) |
Warranty | 5 years |
◆Option Heat Sink

◆Terminal Outs & Dimensions (±0.5mm)
Terminal Outs | |
① | +Vdc in |
② | 0 Vdc in |
③ | +Vdc out |
④ | 0 Vdc out |
Terminal Outs | |
① | +Vdc in |
② | 0 Vdc in |
③ | +Vdc out |
④ | 0 Vdc out |